im booked in for a section next week and I'm having a last minute wobble on the boys name, girls name sorted!

We have two other children named Oliver (Ollie)& Isaac (Zac). We really like joshua and tobias, but I am wondering if I have overlooked any other great boys names which go really nicely as well, so would welcome any other suggestions please ?

I really like Xavier also but think that its too different from our other childrens names.